def exchangeNum(x):

    print('Exchange Start...')

    s = {1:'壹', 2:'贰', 3:'叁'}

    c = s[x]

    return(c)

y = int(input('Enter a Number: '))  # 论int的重要性

#print(exchangeNum(2))
z = exchangeNum(y)

print('Caialize', y, 'is: ', z)
